Portable refrigerating device for travelers



G R E L Q L PORTABLE REFRIGERATING DEVICE I FOB TRAVELERS Filed Nov. 16, 194-2 2 Sheets--Sheet .1

INVENTOR ZeonaraEC/erc BY Y r ATT May 7, 1946. L. F. 'CLERC PORTABLE REFRIGERATING DEVICE FOR TRAVELERS 2 Sheets-$heet 2 Filed Nov. 16, 1942 R m N E W Zeonardfi! Clerc Patented May 1, 1946" UNITED. STATES PATENT oi-"rica PORTABLE REFRIGERATIN G DEVICE FOR TRAVELERS 7 Leonard F. Clerc, Chicago, Ill. Application November 16, 1942, Serial No. 465,657 G'CIaims. (oi. se -91.5)

This invention relates to refrigerating devices and has particular reference to a portable Dry Ice refrigerator, which may be used by tourists,

hunters, and fishermen, and for the shipment of frozen foods, serums and the like.

An object of the invention is to provide a portable Dry Ice refrigerator which issimple in construction, light in weight, economical, to man ufacture, and efficient in use.

Another object of the invention is the provision of a device of the character referred'to, which has a readily accessible compartment with removable trays for compartment is independent of the storage compartments of the device.

Another object of the invention is the provision of a device'of the character referred to which is provided with several compartments and means to regulate the temperature in the respective compartments Another object of sion of a Dry Ice provided with means for evenly diffusing the CO2 gas through the interior of the device.

Other objects and description proceeds, reference being made from the invention is the provitime to time to the accompanyin drawings, in

which:'

Fig. 1 is a perspective view of a device embodying my invention.

making wet ice cubes, which refrigerating device which is advantages appear the Fig. 2 is a sectional view taken substantially on the line 2--2 of Fig. 1.

Fig. 3 is a sectional view taken substantially on the line 3-3 of Fig. 1.

Referring now more particularly to the drawings it will be understood that in the embodiment herein disclosed, my device consists of a trunklike container 5, made of a tough fibrous material, reinforced at the corners and edges as at 6, and provided with carrying handles 1. The trunk 6, is provided with a three section lid 8, each section being'hinged as at 9, and provided with locking means I ll. g

The container or trunk 5, andthe lids 8 are lined with insulating pads II, which are constructed and assembled as taught in my co-pending application, S. N. 441,431, filed May 2', 1942. These pads II, are covered with canvas HA and are secured in position by gluing or other suitable means. The pads ii are comparatively resilient which enables them to be compressed somewhat to effect a seal.

It will be seen that the interior of the trunk '5 is divided into three compartments i2, i3, and I4, each provided with a lid section I. The compartments i2 and H are adapted to serve as food i orage compartments, and the compartment i 3 is arranged to accommodate the solid refrigerant, preferably Dry Ice.

Small doors [5, at the top of the partitions l6 and I1, open to permit communication between the compartments, so that CO: gas from the solid refrigerant may freely circulate. Similar openings i9 and 20 (Fig. 2) are provided in the bottom of the partitions I6 and IT.

The inside of the compartment i3 is preferably lined with thin sheets of plastic 2|, which serve to protect the partitions l6 and I1, and'lining pads ll against damage when the Dry Ice is inserted.

The sheets of plastic 2| panel 22, which in turn rests on narrow strips of plastic 23, which are positioned on edge longitudinally on the bottom of the compartment l3. The control panel 22 consists of several layers of plastic one of which is longitudinally adjustable.

. The layers ofplastic are slotted as at 24 which slots may be opened and closed by the movement )6 Ice platform 25 is held in spaced relation-above the panel 22 and serves Ice refrigerant.

A perforated shelf 26 is supported by the upper edges of the plastic sheets 2|,which line the inside of the compartment i3. The shelf 26 is adapted to support removable wet ice trays 21. The ice' trays 21 are covered by a lid 28 which is hinged as at 29.

To use the device the compartments l2 and H are filled with frozen food or other commodities to be stored and the control is set to get the proper circulation of C02 gas. 'The Dry Ice as a rest for the Dry is then inserted and the shelf 26 and ice trays 21 are inserted. The lids and 8 are then closed and locked and the device is ready for use.

With thlsdevice I have been able to maintain the temperature in the compartments l2 and I4 I at 40 for about three days with approximately 25 pounds of "Dry Ice. By opening the small doors I6, I can reduce the temperature in its compartment to 0 if desired.

Having described my invention, what I claim and desire-to secure by Letters Patent is:

1. In a trunk, the of insulated compartments, one of said compartments being adapted to hold a solid refrigerant such as Dry Ice, and the other compartments being adapted to hold food and the like, said compartments being in communication with one another through controlled passageways, and the rest upon the control I combination of a plurality being provided at its dapted to control from the refrigerant.

ination of a plurality of one of said comparthold a solid refrigerant ther compartments bed and the like, said compartments being in commun other through contr frigerant compartmen tom with a slotted pa flow of C02 gas from provided with a space to support the solid refrigerant.

3. In a trunk, the combination of a p of said compartto hold a solid re refrigerant compartment bottom with a slott the flow 015 C02 gas 2. In a trunk, the comb insulated compartments, ments being adapted to such as Dry Ice, and ing adapted to hold foo ication with one ans w y the ret being provided at its botnei adapted to control the the refrigerant, and said 7 d platform adapted insulated compartments, one ments being adapted asimilar resilient lined pad, and means to lock the lid pad in air-tight position over the liner pads of the compartment.

5. In a trunk, the combination of a plurality of insulated compartments, one of said compartments being adapted to hold a solid refrigerant such as Dry Ice, and the other compartments being adapted to hold food and the like, said compartments being in communication with one another throughcontrolled passageways, the compartments being lined with comparatively resilient insulating pads, and each compartment is provided with an independent lid, each lid havin a similar resilient liner pad, and means to lock the lid pad in air-tight position over the liner pads ot'the compartment, there being an ice tray positioned in the upper part of said refrigerant compartment, and an intermediate lid for coverin such as Dry Ice, and ing adapted to hold partments being in other through controlle refrigerant compartment bottom with a slotted panel a flow of CO2 gas from the r a perforated shelf at t frigerant compartment a the other compartments betood and the like, said comcommunication with one and passageways, and the being provided at its dapted to control the upper end of said redapted to support wet ice trunk, the combination of a plurality of insulated compartments, one of said compartments being adapted to ho such as Dry Ice, and th ing adapted to hold partments being in other through contr id a solid refrigerant,

ompartments bed and the'like, said comcommunication with one anolled passageways,- the said said ice trays.

'6. In a trunk, the combination of a plurality of insulated compartments, one of said compartments being adapted to hold a solid refrigerant such as Dry Ice, and the other compartments being adapted to hold food and the like, said compartments being in communication with one another through controlled passageways, the compartments being lined with comparatively resilient insulating pads, and each compartment is provided with an independent lid, each lid having a similar resilient liner pad, and means to lock the lid pad in air-tight position over the liner pads of the compartment, there being an ice tray positioned in the upper part of said refrigerant compartment, and an intermediate lid for covering 35 said vice trays, and doors in the walls of the recompartments being silient insulating provided with an indepen lined with comparatively repads, and each compartment is dent lid, each lid having frigerant compartment at either end of said ice trays and in alignment with said ice trays.

I v LEONARD F. CLERC. 

